CVE-2026-80513

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-24. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The wpForo Forum WordPress plugin before 3.1.6 does not restrict which classes may be instantiated when it deserializes a user-supplied profile field value, allowing authenticated users with Subscriber-level access and above to inject a PHP Object. No POP chain is present in the wpForo Forum WordPress plugin before 3.1.6 itself; if one is present via another installed wpForo Forum WordPress plugin before 3.1.6 or , this could lead to remote code execution, arbitrary file operations, or SQL injection. This is an incomplete fix of CVE-2026-49769.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
34
EG Risk 34/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 24, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Sep 24, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

wpForo Forum < 3.1.6 – Subscriber+ PHP Object Injection via Profile Fields | CVE 2026-80513 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/09c9b9e7-c178-4f05-80d8-d4d77b7c5050/

Vendor Advisories for CVE-2026-80513(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 28× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 09:19 UTCGHSA enrichment
  2. 2026-10-03 21:39 UTCEG score recompute
  3. 2026-10-03 21:39 UTCGHSA enrichment
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-03 09:59 UTCGHSA enrichment
  6. 2026-10-02 22:09 UTCEG score recompute
  7. 2026-10-02 22:09 UTCGHSA enrichment
  8. 2026-10-02 17:57 UTCEPSS rescore
  9. 2026-10-02 10:28 UTCGHSA enrichment
  10. 2026-10-01 22:48 UTCEG score recompute
  11. 2026-10-01 22:48 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-10-01 11:08 UTCGHSA enrichment
  14. 2026-09-30 23:27 UTCEG score recompute
  15. 2026-09-30 23:26 UTCGHSA enrichment
  16. 2026-09-30 15:04 UTCEPSS rescore
  17. 2026-09-30 11:44 UTCGHSA enrichment
  18. 2026-09-30 00:04 UTCEG score recompute
  19. 2026-09-30 00:04 UTCGHSA enrichment
  20. 2026-09-29 12:03 UTCGHSA enrichment
  21. 2026-09-29 00:21 UTCEG score recompute
  22. 2026-09-29 00:21 UTCGHSA enrichment
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 12:41 UTCGHSA enrichment
  25. 2026-09-28 01:01 UTCEG score recompute
Show 22 more
  1. 2026-09-28 01:01 UTCGHSA enrichment
  2. 2026-09-27 13:48 UTCEPSS rescore
  3. 2026-09-27 13:21 UTCGHSA enrichment
  4. 2026-09-27 01:41 UTCEG score recompute
  5. 2026-09-27 01:41 UTCGHSA enrichment
  6. 2026-09-26 15:59 UTCEPSS rescore
  7. 2026-09-26 13:59 UTCGHSA enrichment
  8. 2026-09-26 02:01 UTCEG score recompute
  9. 2026-09-26 02:01 UTCGHSA enrichment
  10. 2026-09-26 00:28 UTCEPSS rescore
  11. 2026-09-25 14:18 UTCGHSA enrichment
  12. 2026-09-25 02:35 UTCGHSA enrichment
  13. 2026-09-24 14:55 UTCEG score recompute
  14. 2026-09-24 14:55 UTCGHSA enrichment
  15. 2026-09-24 14:04 UTCEPSS rescore
  16. 2026-09-24 11:17 UTCGHSA enrichment
  17. 2026-09-24 10:49 UTCEG score recompute▲ 7.50
  18. 2026-09-24 10:49 UTCGHSA enrichment
  19. 2026-09-24 10:49 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  20. 2026-09-24 06:23 UTCNVD update
  21. 2026-09-24 06:10 UTCEG score recompute
  22. 2026-09-24 06:10 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-80513?
CVE-2026-80513 is a high vulnerability published on September 24, 2026. The wpForo Forum WordPress plugin before 3.1.6 does not restrict which classes may be instantiated when it deserializes a user-supplied profile field value, allowing authenticated users with Subscriber-level access and above to inject a PHP Object. No POP chain is present in the wpForo Forum…
When was CVE-2026-80513 disclosed?
CVE-2026-80513 was first published on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80513 actively exploited?
CVE-2026-80513 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-80513?
CVE-2026-80513 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-80513?
No fix for CVE-2026-80513 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-80513 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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